/*
 * Copyright (c) 2016, 2019, Oracle and/or its affiliates.
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 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials provided
 * with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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package com.oracle.truffle.llvm.parser.listeners;

import com.oracle.truffle.llvm.parser.model.IRScope;
import com.oracle.truffle.llvm.parser.scanner.RecordBuffer;

public final class ValueSymbolTable implements ParserListener {

    private static final int VALUE_SYMTAB_ENTRY = 1;
    private static final int VALUE_SYMTAB_BASIC_BLOCK_ENTRY = 2;
    private static final int VALUE_SYMTAB_FUNCTION_ENTRY = 3;
    // private static final int VALUE_SYMTAB_COMBINED_FNENTRY = 4;

    private final IRScope container;

    ValueSymbolTable(IRScope container) {
        this.container = container;
    }

    @Override
    public void record(RecordBuffer buffer) {
        int id = buffer.getId();
        int index = buffer.readInt();
        switch (id) {
            case VALUE_SYMTAB_ENTRY:
                container.nameSymbol(index, buffer.readString());
                break;

            case VALUE_SYMTAB_BASIC_BLOCK_ENTRY:
                container.nameBlock(index, buffer.readString());
                break;

            case VALUE_SYMTAB_FUNCTION_ENTRY:
                buffer.skip(); // ignored
                container.nameSymbol(index, buffer.readString());
                break;

            default:
                break;
        }
    }
}
